diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fcba5a0a..94ade1f2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,13 +42,13 @@ jobs:
           export PATH="$HOME/texlive/$TEXLIVE_VERSION/bin/x86_64-linux:$PATH"
           tlmgr install --with-doc tex-overview
 
+          mkdir -p $HOME/.local/share/fonts
           curl -LO https://www.wfonts.com/download/data/2014/06/05/comic-sans-ms/comic-sans-ms.zip
           unzip comic-sans-ms.zip -d $HOME/.local/share/fonts
           rm comic-sans-ms.zip
           fc-cache
           fc-list 'Comic Sans MS' | grep Comic
 
-
           # generate the lualatex font cache, otherwise it is done in parallel when calling make
           luaotfload-tool --update --force
 
diff --git a/environment.yml b/environment.yml
index ed9f4ad6..fd40c492 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,7 +2,7 @@ name: toolbox
 channels:
   - conda-forge
 dependencies:
-  - python=3.12
+  - python=3.13
   - pip
   - matplotlib
   - numpy>=2.0
diff --git a/tex-packages.txt b/tex-packages.txt
index 61f0ef82..438c732a 100644
--- a/tex-packages.txt
+++ b/tex-packages.txt
@@ -56,6 +56,7 @@ pdfcrop
 pdflscape
 pgfopts
 placeins
+scrhack
 siunitx
 standalone
 standalone